Database Develop

[Q] Bootloader unlocking?

I backed up my TA when I was on 534, updated to 527 and now caannot obtain root. Is ther a way to unlock bootlader and root 257 then flash the TA to lock the bootloader with root. I am totally new to Sony. Used HTC and much different.
I use Vroot to root 534 then backed up TA abd tested it,
installed dualrecovery and installed monxDIFIED.
when I connected my Z1 to the computer it ask to update and I did.
Now I cannot root.
What is the process to unlock the bootloader abd root restore TA without koosing camera
XDA the place for answers!!!!!!!!!!!!!!!

trock62 said:
I backed up my TA when I was on 534, updated to 527 and now caannot obtain root. Is ther a way to unlock bootlader and root 257 then flash the TA to lock the bootloader with root. I am totally new to Sony. Used HTC and much different.
I use Vroot to root 534 then backed up TA abd tested it,
installed dualrecovery and installed monxDIFIED.
when I connected my Z1 to the computer it ask to update and I did.
Now I cannot root.
What is the process to unlock the bootloader abd root restore TA without koosing camera
XDA the place for answers!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
Simply use flashtool to flash a .534 firmware and root using vroot or kingoroot. You dont need to unlock your bootloader to do any of this. Currently .257 firmware is not rootable but there are stock custom roms which are pre-rooted based on .257 firmware.
ps. is your bootloader unlocked or locked?

Locked bootloader.
everything working and rooted gain, learn some new flashtool things.
Thanks
Sent from my C6903 using xda app-developers app

[Q] Unlocked Bootloader, Unrooted OTA Update?

Heyy guys I have a XperiaSP which have unlocked bootloader and unrooted phone (just unrooted it a while ago). I would REALLY like to update my phone because there's too many bug here on Xperia SP. However, when the phone was still rooted I tried to update and it failed. Now after unroot I was going to update but then the fact that I unlocked the bootloader I am really worried about wiping/bricking the phone through OTA update. Any help pls?
P.S - My phone is barely Unlocked. It is nearly as stock and no custom recovery nor root is installed.:laugh:
Edit : By the way, is the Xperia SP really got Wi-Fi issues? My iPod got full signal on home's wifi and my SP got barely 1-2..

hmmm
dhisonnn said:
Heyy guys I have a XperiaSP which have unlocked bootloader and unrooted phone (just unrooted it a while ago). I would REALLY like to update my phone because there's too many bug here on Xperia SP. However, when the phone was still rooted I tried to update and it failed. Now after unroot I was going to update but then the fact that I unlocked the bootloader I am really worried about wiping/bricking the phone through OTA update. Any help pls?
P.S - My phone is barely Unlocked. It is nearly as stock and no custom recovery nor root is installed.:laugh:
Click to expand...
Click to collapse
did u try using PC companion? Is It ok there?
Or else I think you know that Sony's 4.3 update is on the corner. that may will solve your issue

madhukarmohan said:
did u try using PC companion? Is It ok there?
Or else I think you know that Sony's 4.3 update is on the corner. that may will solve your issue
Click to expand...
Click to collapse
Ahh yeah gonna try that ASAP. but I just forgot to mention that my primary laptop is now on service center (Got a bit problem there) so I can't really update my SP through that.
I tried updating just now through OTA. After the reboot a popup message appeared :
"Could not install new software version. Try again."
Is that because of my unlocked bootloader? Cos I unrooted my phone completely through SuperSU.
If so how to relock the bootloader??

If you want to relock the bootloader just use FlashTool. In your case because you don't have any custom Firmware on your phone this should be quite easy.
But I always thought when updating with having root access you can update but lose root. Maybe it didn't work (the update) because of a complete diffenent reason. Did you try it a second time?
Sent from my C5303 using xda app-developers app

Schokonuss said:
If you want to relock the bootloader just use FlashTool. In your case because you don't have any custom Firmware on your phone this should be quite easy.
But I always thought when updating with having root access you can update but lose root. Maybe it didn't work (the update) because of a complete diffenent reason. Did you try it a second time?
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
When I got my laptop back, I'm definitely going to relock the bootloader. But if I do something wrong, will it hard brick or something? (sorry for my parranoidness) and relocking is not much difference from unlocking right?
I tried installing the software update the second time. Unlocked BL, fully unrooted (No Super SU). Still fails gonna try at PCCompanion

dhisonnn said:
When I got my laptop back, I'm definitely going to relock the bootloader. But if I do something wrong, will it hard brick or something? (sorry for my parranoidness) and relocking is not much difference from unlocking right?
I tried installing the software update the second time. Unlocked BL, fully unrooted (No Super SU). Still fails gonna try at PCCompanion
Click to expand...
Click to collapse
You should flash stock ROM using flashtool, relock the bootloader, and then restore the TA partition
Sent from My XSP

Pulsa said:
You should flash stock ROM using flashtool, relock the bootloader, and then restore the TA partition
Sent from My XSP
Click to expand...
Click to collapse
I'm on my stock ROM now (Default Sony ROM right? But I've updated it before, does it count as stock?)
What's TA partition?
Sorry for noob Qs

I never do this before.So can I update my phone via pc companion via unlocked bootloader?On stock rom without root and recovery?
Sent from my C5303 using xda app-developers app

If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app

Schokonuss said:
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
if i didnt make backup (because no one told me to ) i cant install 4.3 update from Sony if comes out ?

Yes, you'll be able to get the 4.3 update without the TA partition. But, as everyone else here said, make sure you're on a stock ROM, with a locked bootloader.

Locked bootloader ----> You can use PC Companion or Flashtool to update your phone
Unlocked bootloader ------> Flashtool only
Also, don't try to update your phone via OTA while having your bootlader unlocked, because it will brick your device.

Schokonuss said:
If you didn't flash anything on your device you can relock your bootloader without any problems. If you had a custom recovery, kernel or ROM and you relock your bootloader while having this custom recovery, kernel or ROM this should brick your phone (I think this could even be a hard brick) but if everything is stock (like I already said) there shouldn't be any problems with relocking
TA partition contains the working bravia engine (2) which gets lost if you unlock bootloader. If you had made a backup of the TA partition you could restore this and get the bravia engine back
Sent from my C5303 using xda app-developers app
Click to expand...
Click to collapse
My original Stock Rom had been flashed to CM 10, but now I have flashed it back to stock rom that I tried to search online from this site. Is it counted as original stock rom or not? My phone is unlocked bootloader, and I got ota update but cannot install, I don't know why; maybe it has been changed or maybe of unlock bootloader?

My Sony Xperia Z1 C6902 is not detecting sim cards

Hi,
I wanted to root my phone but I was running Android 4.3 JB with firmware 14.2.A.136 - which, through a certain amount of research, found that is not possible to be rooted unless and until it is downgraded to the previous version.
Accordingly, I took the help of C4E Tech's video on youtube for downgrading my software from 4.3. I followed all the steps shown in the video using flashtool application. The firmware to which i downgraded was C6902_14.1.G.1.534_Generic IN.ftf as I live in India and mine is the 3g version.
However, on completion of this process, I found that my phone booted all right, but it did not detect my Sim card, and instead threw a status on the lock screen saying Invalid sim.
Request you to please help me ASAP as I am stuck with no way out and have tried all ways using flashtool application to fix this issue but in vain. Thanks in advance.
Also, when the flashing process was going on, a warning message was shown in the log, which said, this file is ignored simlock.ta, I dont know whether this has anything to do with what's happened. Please help

rossvatsan said:
Hi,
I wanted to root my phone but I was running Android 4.3 JB with firmware 14.2.A.136 - which, through a certain amount of research, found that is not possible to be rooted unless and until it is downgraded to the previous version.
Accordingly, I took the help of C4E Tech's video on youtube for downgrading my software from 4.3. I followed all the steps shown in the video using flashtool application. The firmware to which i downgraded was C6902_14.1.G.1.534_Generic IN.ftf as I live in India and mine is the 3g version.
However, on completion of this process, I found that my phone booted all right, but it did not detect my Sim card, and instead threw a status on the lock screen saying Invalid sim.
Request you to please help me ASAP as I am stuck with no way out and have tried all ways using flashtool application to fix this issue but in vain. Thanks in advance.
Also, when the flashing process was going on, a warning message was shown in the log, which said, this file is ignored simlock.ta, I dont know whether this has anything to do with what's happened. Please help
Click to expand...
Click to collapse
This is 100% normal. When you go from 4.3 back to 534, your IMEI shows up as all zeros. Just root 534, install recovery and follow [Nut]'s inductions for flashing his pre-rooted 136 ROM. After you do this your IMEI will be back and your SIM will work fine
Sent from my Xperia Z1 using Tapatalk

301stSpartan said:
This is 100% normal. When you go from 4.3 back to 534, your IMEI shows up as all zeros. Just root 534, install recovery and follow [Nut]'s inductions for flashing his pre-rooted 136 ROM. After you do this your IMEI will be back and your SIM will work fine
Sent from my Xperia Z1 using Tapatalk
Click to expand...
Click to collapse
Thanks. Its a relief to hear its normal. Could you please tell me where I can find these instructions? Thanks.

301stSpartan said:
This is 100% normal. When you go from 4.3 back to 534, your IMEI shows up as all zeros. Just root 534, install recovery and follow [Nut]'s inductions for flashing his pre-rooted 136 ROM. After you do this your IMEI will be back and your SIM will work fine
Sent from my Xperia Z1 using Tapatalk
Click to expand...
Click to collapse
However, how do I unlock my bootloader considering that my IMEI number's gone. Because to unlock bootloader you need to send the IMEI number to Sony right, after which they send a mail to me with a key. Can you please tell me how you unlocked the bootloader of your phone after facing such a problem??:crying:

rossvatsan said:
Thanks. Its a relief to hear its normal. Could you please tell me where I can find these instructions? Thanks.
Click to expand...
Click to collapse
rossvatsan said:
However, how do I unlock my bootloader considering that my IMEI number's gone. Because to unlock bootloader you need to send the IMEI number to Sony right, after which they send a mail to me with a key. Can you please tell me how you unlocked the bootloader of your phone after facing such a problem??:crying:
Click to expand...
Click to collapse
Here you go: http://forum.xda-developers.com/showthread.php?t=2628185. A note: in the thread it says you must be on 290 rooted to do this. It isn't really true, you can do this if you are on 534 rooted. Just follow the same instructions. (To get from 534 to 290 rooted you do the same thing as you do from 290 to 136 basically, so you can skip the extra step and just go from 534 directly to 136).
Just wait until you're on the 136 rooted ROM and have your IMEI back and then unlock the bootloader. Just make sure you do a TA backup first!

301stSpartan said:
Here you go: http://forum.xda-developers.com/showthread.php?t=2628185. A note: in the thread it says you must be on 290 rooted to do this. It isn't really true, you can do this if you are on 534 rooted. Just follow the same instructions. (To get from 534 to 290 rooted you do the same thing as you do from 290 to 136 basically, so you can skip the extra step and just go from 534 directly to 136).
Just wait until you're on the 136 rooted ROM and have your IMEI back and then unlock the bootloader. Just make sure you do a TA backup first!
Click to expand...
Click to collapse
But how do i flash 136 rooted ROM without unlocked bootloader ? I am very confused, please help. To flash a ROM, you need to have a custom recovery installed right ?, and for custom recovery to be installed, you need to have the bootloader unlocked right?, But i am unable to unlock the bootloader because of non availability of IMEI:crying::crying:

rossvatsan said:
But how do i flash 136 rooted ROM without unlocked bootloader ? I am very confused, please help. To flash a ROM, you need to have a custom recovery installed right ?, and for custom recovery to be installed, you need to have the bootloader unlocked right?, But i am unable to unlock the bootloader because of non availability of IMEI:crying::crying:
Click to expand...
Click to collapse
No, no, and no. All you need is root to install recovery. If you even did any research on the link I sent you would see that the recovery recommended says in huge letters at the top that it is for both locked and unlocked bootloaders.
With a locked bootloader you can flash any ROM with a stock kernel, which the one I linked has.
Sent from my Xperia Z1 using Tapatalk

[Q] Rooting issues - 4.3, IMEI, not actually rooted etc....

Hi All
So firstly I should say I only have myself to blame. I'm quite a techy guy so I just assumed i'd be able to root my phone without any issues and pick it up as I go. What i've quickly found out is i'm in way over my head and i'm an absolute noob!
Any advice would be greatly appreciated from those guys out there that actually know what they are doing. I have read many forums but i'm still lost.
My story is as follows:
- I have a Z1 that was locked on stock firmware 4.4
- I read that it would be a good idea to unlock the bootloader so i did this
- I wanted to root my phone but from what I read I could see I would have to downgrade the firmware to 4.2. So this is what i did.
- By doing this I lost my IMEI number, got very worried i'd ruined my phone. I tried many things to restore it, there were a variety of different solutions online, none of them worked. I eventually flashed a 4.3 firmware i found on this forum which restored my IMEI.
- I then read through a few posts of people who had similar issues and advice was given to downgrade again (if i wanted to root) but this time exclude the baseband etc. I did this, but lost my IMEI again! the advice didn't work
- So I then went and updgraded again! to 4.3 to restore my IMEI and network access
- There doesn't seem to be a way to root on 4.3 so my phone isn't rooted, that's ok. But when i try to use my banking apps they don't work! they say my phone is rooted even though it isn't! I have checked with root checker
- Like an idiot, i didn't back up the phone when i first started doing all of this, i didn't really know what i was doing so I am now in a situation where i have the worst of both worlds. They are, i can either 1. downgrade the firmware to 4.2, root my phone but not have a valid IMEI and network access or 2. stay on 4.3, have a valid IMEI and not be rooted but certain apps think i'm rooted so i can't use them.
So all in all i've just messed things up and i'm in way over my head. I would really appreciate some advice
Thanks

Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!

6317
gregbradley said:
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
Click to expand...
Click to collapse
Hi Greg
Thank you very much for your quick response. I will try and follow your advice to the letter tonight/tomorrow and let you know how it goes.
Thanks again

retro100386 said:
Hi Greg
Thank you very much for your quick response. I will try and follow your advice to the letter tonight/tomorrow and let you know how it goes.
Thanks again
Click to expand...
Click to collapse
..and if you want to see the Video which help you to understand better just check the @gregbradley Signature or mine.

eclyptos said:
..and if you want to see the Video which help you to understand better just check the @gregbradley Signature or mine.
Click to expand...
Click to collapse
The video by shem is for locked bootloaders, he needs an unlocked bootloader method

gregbradley said:
The video by shem is for locked bootloaders, he needs an unlocked bootloader method
Click to expand...
Click to collapse
So we have to ask @shem2409 to do another vid for Unlocked Bootloaders...

eclyptos said:
So we have to ask @shem2409 to do another vid for Unlocked Bootloaders...
Click to expand...
Click to collapse
I don't think so, the unlocked bootloader method is very generic and there are hundreds (if not thousands) of guides and probably as many videos.

gregbradley said:
I don't think so, the unlocked bootloader method is very generic and there are hundreds (if not thousands) of guides and probably as many videos.
Click to expand...
Click to collapse
I know but as you see the users still do mistake anyway, even if there is a lot of vids with a clear explanation.

conflicting messages?
gregbradley said:
Yes you are right.
Also, there is no issue with losing IMEI when downgrading, it happens to everyone, but it comes back when you upgrade.
Also, if you unlock the bootloader there is no need to downgrade, that is a locked bootloader method of rooting
You should root before unlocking the bootloader in order to backup the TA partition, but you are too late now...
Solution
1) Use flashtool to relock the bootloader
2) Use pccompanion to update to latest firmware
3) Unlock the bootloader again with flashtool
4) Flash a custom kernel for stock based ROMs
5) Install SuperSU from the play store.
DONE!
Click to expand...
Click to collapse
Hi Greg, can you give me a bit more advice please.
i'm just looking at the tutorial to relock by bootloader. It says "before u relock bootloader u have to be on pure stock kernel (flash only the kernel.sin using flashtool), else the device WILL NOT BOOT after relock"
The problem is i'm already flashed on to an FTF image that was on this site. From so by doing this am i going to brick my phone? i'm confused and i don't want to make things work so your advice would be apprecaited
thanks

retro100386 said:
Hi Greg, can you give me a bit more advice please.
i'm just looking at the tutorial to relock by bootloader. It says "before u relock bootloader u have to be on pure stock kernel (flash only the kernel.sin using flashtool), else the device WILL NOT BOOT after relock"
The problem is i'm already flashed on to an FTF image that was on this site. From so by doing this am i going to brick my phone? i'm confused and i don't want to make things work so your advice would be apprecaited
thanks
Click to expand...
Click to collapse
Hi Greg
it's fine, i am just being stupid again, i just relocked without a problem, thanks again

http://www.lifehacker.com.au/2014/0...oid-kitkat-devices-in-one-tap-no-pc-required/
check this out

sim card not valid after flash

I was trying flash rom 4.2.2 and i checked "simlock.ta" option then my phone note sim card not valid and lose some funtion like camera but i can fix by install restore drm key funtion in here:
http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
but i cant solve sim card not valid because i dont have file TA backup.
And can i use other phone's file TA backup for my phone?
Thanks for help!

truyennguyends said:
I was trying flash rom 4.2.2 and i checked "simlock.ta" option then my phone note sim card not valid and lose some funtion like camera but i can fix by install restore drm key funtion in here:
http://forum.xda-developers.com/crossdevice-dev/sony/xperia-z1-z2-z3-series-devices-drm-t2930672
but i cant solve sim card not valid because i dont have file TA backup.
And can i use other phone's file TA backup for my phone?
Thanks for help!
Click to expand...
Click to collapse
Is your bootloader unlocked? Is your phone C6902? Why in the world would you want to flash antiquated 4.2.2, especially if your bootloader is unlocked. The unlocking guide specifically states you have to be at least on 4.3 in order not to lose camera. If your phone is C6902 and you flashed C6903, you have a wrong baseband.
No. You can't use another phone's TA backup, unless you want to brick your phone.

optimumpro said:
Is your bootloader unlocked? Is your phone C6902? Why in the world would you want to flash antiquated 4.2.2, especially if your bootloader is unlocked. The unlocking guide specifically states you have to be at least on 4.3 in order not to lose camera. If your phone is C6902 and you flashed C6903, you have a wrong baseband.
No. You can't use another phone's TA backup, unless you want to brick your phone.
Click to expand...
Click to collapse
My phone is SOL23 and bootloader in locked but i check bootloader status is uknow. I flashed rom stock but notthing change.
This post said i can solve my problem with file TA backup
http://forum.xda-developers.com/z3-compact/help/rooting-status-unknown-sim-card-camera-t3279419
But i dont have.
Ty :good:

truyennguyends said:
My phone is SOL23 and bootloader in locked but i check bootloader status is uknow. I flashed rom stock but notthing change.
This post said i can solve my problem with file TA backup
http://forum.xda-developers.com/z3-compact/help/rooting-status-unknown-sim-card-camera-t3279419
But i dont have.
Ty :good:
Click to expand...
Click to collapse
I am not familiar with SOL23, but if your bootloader is locked, there is no permanent damage. You just need to re-flash the original firmware for SOL23. Try to repair it with Sony flashtool...
You have to restore your phone to original, then, if you want to unlock bootloader, do a TA backup, so that you can restore DRM function in case you would want to relock. If you unlock without backing up, you will lose your DRM key forever...